Improvement in adjusting feed-rolls for planing-machines



B. D. LAWRE N'CE 8; C. E. WARD. Adjusting Feed-Rails for Planing-Machines. N'o.l68,650-

PatentudOct 1L1875.

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BY 6.8M

ATTORNEW.

N.PETERS. PHOTO-LITHOGRMSHER. WASHINGTON. n. C.

UNITED STATES PATENT OFFICE.

CHARLES D. LAWRENCE AND CHARLES E. WARD, OF FAIRFIELD, MAINE.

IMPROVEMENT IN ADJUSTING FEED-ROLLS FOR PLANlNG-MACHINES.

Specification forming part of Letters Patent No. 168,650, dated October 11, 1875; application filed July 17, 1875. i

The invention will first be described in 0011-.

nection with drawing, and then pointed out in claim.

Figure 1 is a plan view of our improved planing-machine, and Fig. 2 is a transverse section, taken on the line 00 00.

Similar letters of reference indicate corresponding parts A is the rotary cutter-head B, the feed-roll in stationary bearings; C, the movable feedroll,and D the shaft for turning the feed-rolls. The'feed-rolls are mounted on the rod F G by the bearings H, which can slide or be fixed in position as may be preferred. Those for roll C are made to slide, and they are worked by the rod G, which screws in the bearing on it; and, in order to move both upper and lower sliding bearings alike, they carry a shaft, I, with pinions gearing with the stationary racks J. K is a an arm connecting lower sliding bearing H with the sliding pinion L, which turns it to shift the pinion along with the feedroll and keep it in gear. bears the adjusting-screws toward the work to allow the feed-roll to yield to any inequali- CHARLES D. LAWRENCE. CHARLES E. WARD.

Witnesses:

F. E. MGFADDEN, F. E. OLARY.

M is a spring, which 

